Why Falling Rocks From Trucks Are A Common Cause Of Windscreen Chips

If you’ve ever been driving behind a truck and heard the sharp ping of a rock hitting your windscreen, you’re not alone. Falling debris from trucks is a frequent cause of windscreen chips, which can lead to serious damage if not addressed. Many drivers underestimate the risks, but a small chip can quickly turn into a dangerous crack. In this blog, we’ll explore why these chips happen, the dangers of ignoring them, and when a windscreen repair is necessary.

Trucks carrying construction materials, gravel, and loose debris often leave a trail of small rocks behind them. These materials can become dislodged for several reasons:

• Poorly Secured Loads – Loose rocks can easily escape if a truck’s load isn’t properly covered or tied down.
• Road Vibrations & Wind Forces – High-speed travel and rough roads can shake debris loose, sending it flying toward nearby vehicles.
• Deteriorating Roads – Potholes and uneven surfaces can cause rocks to be thrown into the air by passing traffic.

• Maintain a safe following distance from trucks carrying loose materials.
• Look for warning signs that indicate debris risks and avoid tailgating.
• Change lanes if possible to reduce direct impact from falling rocks.

A small chip might seem minor, but delaying repairs can have serious consequences. Cracks can spread due to:

• Temperature Changes – Hot and cold conditions cause the glass to expand and contract, worsening the damage.
• Road Vibrations – Everyday driving, especially on bumpy roads, can turn a chip into a long crack.
• Accidents & Safety Risks – A compromised windscreen weakens your vehicle’s structural integrity, increasing the risk of shattering in a collision.

• Cover the chip with clear tape to keep dirt and moisture out.
• Avoid extreme temperature changes that can worsen the crack.
• Get a windscreen repair as soon as possible to prevent further damage.

Not all windscreen damage can be repaired. If the damage is extensive, replacement is the safest option. Signs that you need a new windscreen include:

• Cracks longer than 7cm – These are difficult to repair and will likely continue spreading.
• Damage in the driver’s line of sight – Repairs may leave distortions, affecting visibility.
• Multiple chips or deep damage – A windscreen with several weak points is more prone to failure.

At Road Runner Windscreens, we understand the frustration and safety concerns of a chipped or cracked windscreen caused by falling debris. Our team of experts is dedicated to providing prompt and professional windscreen tinting and repair services to get you back on the road safely. Contact us today!